Paper-box.



No. 658,681. Patented Sept. 25, I900. F. J. SCHLEICHER.

P A P E R B 0 X (Application filed Mar. 1, 1900.)

(No Model.)

NHED STATES LATENT OFFICE.

FRANK J. SOI-ILEIOIIER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE ST. LOUIS PAPER BOX COMPANY, OF SAMEPLACE.

PAPER BOX.

SPECKFICATION formingpart Of Letters Patent N0. 658,681, dated September 25, 1900. Application filed March 1,1900. Serial No. 6,895. (No model.)

To all whom it may concern.-

Be it known that I, FRANK J. SCHLEICHER, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Paper Boxes, of which the following is a full, clear, and exact description, reference being had to the accom panying drawings, forming part of this specification.

My invention relates to a knockdown folding paper box in which the box body and cover are formed from a single blank.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a perspective view of my improved box in open position. Fig. II is a view of the prepared blank unfolded. Fig. III is a cross-sectional view of the box, taken on the line III III, Fig. I. Fig. IV is an enlarged detail end view of the central parts of the end flaps, showing the locks thereof.

The box is constructed of a blank cut and scored as illustrated in Fig. II. 2, and 3 designate, respectively, the front-wall, bottom-wall, and rear-wall sections of the box adapted to be bent on the scored lines A and B. The coverAis bent from the section 3 on the scored line C and is provided with aflap 5, bent therefrom on the scored line D.

6 are end flaps bent from the bottom section 2 on the scored lines E, these end flaps being designed to be folded into the interior of the box and to serve as inner end walls, as seen at the left-hand end of Fig. I. The frontwall section 1 has bent from it on the scored lines F the interlocking end flaps 7, severed from the end flaps 6, and the rear-wall section 3 has bent from it on the scored lines G the interlocking end flaps 8, severed from the providing an inner deep notch 8 and an outer shallow notch 8 When the box-blank is folded to form the box, the end flaps 6 are first bent upwardly from the bottom section 2 on the scored lines E. Then the sections 1 and 3 are bent upwardly on the scored'lines A and B, bringing them into upright positions. flaps 7 and 8 are then bent inwardly on the scored lines F and G and are brought together, and their legs 7 and 8 enter the notches of the opposing flaps, as seen in Figs. I, III, and IV. When the interlocking flaps 7 and 8 are brought together, the lips 7 and 8 approach each other, and their upright straight edges come into close contact with each other, so that when the interlocking flaps are fully presented into close relation the lips bind them in close engagement with each other and prevent any slippage of the interlock between the assembled flaps, for the reason that the inner deep notch 7 of one flap interlocks with the inner deep notch 8 of the other flap, and the outer shallow notch 7 of one flap interlocks with the outer shallow notch 8 of the other flap.

9 indicates auxiliary end cover-flaps severed from the cover-section 4 and bent from the interlocking flaps 8 on the scored lines H. When the box is put together, as described, these auxiliary end cover-flaps fold downwardly and inwardly to inclose the box contents at the ends of the box, and the cover-section 4 is thrown forwardly and its flap 5 inserted into the box back of the front-wall section 1.

I claim as my invention 1. Ablankforboxescomprisingafrontpart having end flaps, each formed with an upwardly-extendin g notch having inclined edges and an angular lip projecting inwardly across the notch at the inner end thereof providing an inner deep notch and an outer shallow notch, a bottom part, a back part having end flaps, each formed with an upwardly-extending notch having inclined edges and an angular lip projecting inwardly across the notch at the inner end thereof providing an inner deep notch and an outer shallow notch, and a cover part.

2. A box comprising a front part having end The interlocking end flaps each formed with an npwardly-extendi end thereof providing an inner deep notch 10 ing notch having inclined edges and an anguand an outer shallow notch, and interlocking lar lip projecting inwardly across the notch with the angular lip of the adjacent flap, and

at the inner end thereof providing an inner a cover part.

5 deep notch and an outer shallow notch a bottom part, a back part having end flap s each FRANK SOHLEIOHER' formed with an upwardly-extending notch In presence ofhaving inclined edges and an angular lip pro- E. S. KNIGHT,

jecting inwardly across the notch at the inner M. P. SMITH. 

